Brush



May 29, 1928. 1,671,334

H. L. WHITE BRUSH Filed Oct. 13, 1923 2 Sheets-Sheet l W oooo 4 1 EG1 1 ((loooooo-oooo/ (Q- floooooo o-oo6m WWW/W INVENTOR 'ES AITORN Y May 29,1928. 1,671,334

H. L. WHITE BRUSH I Filed Oct. 15, 1923' 2 Sheets-Sheet 2 ((1 p. o o o o o 0 0D) 4 1 WIAWII WM W ' vWIMI/ I INVENTOR M@ WW2;

ATTORNEY Patented May29,1928. v i 7 I i I i UNITEDf STATES OFF-ICE.

I A nownnn I. WHITE, on NEW ORK, N. i. l i l BRUSH. v i Application filed October 1a, 19 23. Srial n 'ieazss.

My invention relates to brushes having outline as the groove into which it fits and special provision for taking them apart for of such smaller size as to allowfits being thorough cleaning or for the substitution or easily slid into the groove, yet has a lonreplacennent of parts. It particularly relates gitudinal axis which is not of the same shape 5 to brushes having bristle holding slides inas that ot the groove. This difference in the 55 serted in the brush back and to simplen'ieans longitudinal section of the slide from that of for firmly holding the slides in'the back and the grooves along their respective and subyet allowing the easy removal of them for stential lengths causes a binding between the cleaning of the brush, etc. I i the sides of the slides and the sides of their The object of my invention is to provide respective grooves which insures the holding a brush which can be taken apart for cleanof the slide against any force applied inthe ing, or for reversal, exchange; or substituordinary use ofthe brush; The brush back tion of parts, and which is simple of conis solid enough tobe rigid and theslide is struction and is sanitary/ Y i resilient enough to bend to accommodate it- 75 'Another object of my invention is to proself to the groove into which it is slid and (i vide a bristle slide type of brush in which yet is stilt enougl'i to cause a bindingbe the bristle slide is held in the brush by sinitween thesides oi :thegroove and theslidc. ple means. i by t That the sides of the groove and of the slide f In the ordinary brushesof theb ristle slide be approximately parallel with their respeC type various devices are resortedto for setive a'Xes is 0t course necessary for the slide curing the slide to the brush back, but such and groove construction. The sides of the devices are complicated and have parts groove tending toflcause' the .slide to conwhich catch and accumulate dirt andcause l orrn and fit the groove causes a binding be I the brush to become unsanitary. Thisis'estween the slide magi-cove when they are pecially the case in tOOtfli"b1;USl ];6S of this slid together which holds the slide in the type, for: the extra pfart'ste'ndto collect and brush back securely'enougjh forall purposes retain tooth paste or powder and foreign for which the brush is ordinarily used. It matter from the teeth and are'unde'sirable' a'lsoi allows the slides to be taken out of the and even become dangerously unsanitary; with out any eifcessive on 30 Metal parts are often used to secure the Ordinaril in iii-(l king my brush I either 30 slides in the brush back but these-are unmake theslid-esslightly bowed along their desirable in such as clothes," hair, and tooth length and their respective grooves straight, brushes and it to such br usl-e's that my or I make the slides s a-ight and the grooves invention particularly applicable altl-iough bowed. Thesl'id-eswhen bowed can have the it is capable of general application. boW'in any placelalong their length. or in 5 My invention involvesje' bristle slide for any plane oftheir axis bntiny usual method a grooved 'bruslrback which; being substanis to bOWlill-Qll'l in the plane of theaxis of tia-lly of the sa ine cross-sectional size and their bristles (see Fig. Set the accompany shape as the g v the -f has a fit with i-ng drawing) or in the plane at. right angles said back which is a little tighter thana o the plane of the liiristles (see Fig.

sliding fit and which is tight enough to hold WV-hen making a brush in which the bristle the slide in the brush against forces exerted rows are on a decided curveasin oval shaped on it invtlie ordinary use of the brush but brushesgl niake the groove along a regular \vhich is not so tight as t0 brevent conVnu Such-{1S 5111 a of a Circle ip l5 ient removal of the slide from its groove of largedianieter andvinake the bristle slide for the purpose of cleaning}, exchange; ctc. With a-ycurve of slightly less or more curva'-' of theslides and bristles.- y titre: 1 v J i v A 'inodificatioir of my invention involves In the drawing- Fi'g. 1 shows a plan view a bristle slide of somewhat-resilient material of a slide curved in a plane normal tothe which while being of the same crosssectional axes of the bristles.

Fig. 2 shows a plan view of a brush back with brush slides fitted into the groove thereof and with one slide but partly pushed into its groove.

F ig. 3 is a transverse sectional View of my brush showing the cross-sectional shape of the grooves and slides.

Fig. 4t is a longitudinal section through a brush back showing a slide positioned in a groove.

Fig. 5 is a side elevation 01"" a bristle slide which is curved in the plane of the axes of the bristles.

Fig. 6 shows a cross-section of a part of a brush back with grooves and slides of T shaped cross-section therein.

Fig. 7 shows a split or double slide, each part carrying a row of bristles and the two parts together forming a T-shaped cross section to fit a similarly shaped groove.

Fig. 8 shows a two part slide similar to that of Fig. 7 but of dove-tailed crosssection as in Fig. 8.

In F ig. 9 is shown a slide similar to those shown in Figs. 1 and 5 but which is substantially straight throughout its length and which depends upon friction between its sides and those of its groove for holding it -1I1 its groove.

Figs. 10 to 12 show this straight form of slide inserted into straight grooves in a brush back.

Fig. 13 is a sectional view of a brush having bristles set in both the brush back itself and in brush slides. In this view is also shown a T-slot slide and groove arrangement.

like characters refer'to like parts throughout.

In Fig. 1 the bristle slide, 1 is curved in a plane normal to the axes of the bristles and of the bristles holes, 5. On either end of the slide are the raised portions, 1 which facilitate the pulling or pushing of the slide into or out of the groove.

In Fig. 2 the brush back or body, 3 has in it the dove-tailed grooves, 2 into which fit the slides, 1. The slides, ofcourse-v are made in the dove-tailed shape to confornito that of the grooves. Here is also shown a slide, 1 inserted part way into its groove, the part in the groove having been straightened out to the configuration of the groove.

The transverse section shown in Fig. 3 shows the sectional shapes of the grooves, 2 and the slides, 1. In Fig. 4 is shown the slide, 1 as having conformed longitudinally to the shape of the groove, 2 when inserted therein. In this case the slide isnormally curved and the groove straightas shown in Fig. 2. In Fig. 5 is shown a slide, 1' with the bristles, et inserted therein. The slide in thiscase is curved in the plane of the axes of the bristles.

In Fig. 6 is shown a cross sectional shape vof slide and groove which is T-shape'd and This double form of slide allows a close arrangeinent of the bristle rows in the brush.

In Fig. 9 is shown a slide, 1 similar to those shown in Figs. 1 and 5 but which is substantially straight throughout its length. This form of slide is made for either a curved groove or for a straight groove as shownin Fig. 10. Where a straight slide is mounted in a straight groove friction between the sides of the groove and of the slide serves to hold the slide in the groove. Figs.

10 to 12 show this form of slide and its grooved brush back assembled.

For some purposes I find that it is desir able to mount the bristles in the brushbacks by means of slides only in alternate rows of the brush. Removing a slide in such a brush provides suflicient additional space between the fixed rows of bristles to allow convenient access for the cleaning of the brush. In

Fig. 13 is shown such a brush in which the I bristles, 7 are set in rows which alternate In the different figures of the drawings withthe grooves, 2 into which fit the bristle slides, 1 with their bristles, 6.

From the specification and drawings it is obvious that the bristle slides may be readily removed for cleaning, or'forreversing en'd for end to insure even wear of the bristles,

or for the replacement of worn slides with new ones.

I claim:

1. In 'a brush, in combination, a brush back having a' groove with undercut sides and a bristle holding slide for suchgroove, said slide being resilient and having an axis of different shape from'that of said groove, whereby said slide is held in said groove against any force normal'in the use of the brush and whereby the slide may be easily.

and quickly removed from or put into the brush bacl I I i 2. In a brush, in combination, a brush back having straight grooves with undercut sides, slides of substantially the same cross section as said grooves, and bristles mounted on said slides, said slides being of resilient material and normally curved longitudinally whereby when inserted in said grooves they will frictionally engage the sides of said grooves to hold them in place during use and whereby they can be taken out and re of the same cross-sectional size and shape as inserted or replaced. that of the brush back grooves but of differ- 3. A brush structure comprising a brush ent longitudinal shape. 10 back constructed to form a plurality of un- Signed at New York, in the county of New 5 (:lercut grooves of like cross-sectional size York and State of New York, Oct. 12, A. D.

and shape, and a plurality of interchange 1923. I able bristle holders of resilient material'each HOWARD L. WVHITE. 

